Home / 221,352.42-305,480.76-125,868

Finding the Fourth Proportional to 221,352.42, 305,480.76 and 125,868

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Solution

The fourth proportional to 221,352.42, 305,480.76 and 125,868 is: 173,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,352.42 : 305,480.76 = 125,868 : x
  2. Step 2: Convert to fraction form
    221,352.42/305,480.76 = 125,868/x
  3. Step 3: Cross multiply
    221,352.42x = 305,480.76 × 125,868
  4. Step 4: Simplify right side
    221,352.42x = 38,450,252,299.68
  5. Step 5: Solve for x
    x = 38,450,252,299.68/221,352.42
  6. Step 6: Final answer
    x = 173,706.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.